feat: add float_format flag

[rhnvrm]

This commit adds a float_format flag to easyjson which allows users to change the float format used in strconv. The default flag used is g by easyjson which is kept as is to avoid a breaking change.

If a user wishes, they can now provide a flag such as: bin/easyjson -float_format='f' ./tests/float_format.go

The g format converts long floats into e-notation. Using a flag such as 'f' might be necessary for certain use cases to maintain backward compatibility.

[rhnvrm]

Hey @bulletmys, we internally use this patch and were wondering if it would be possible to upstream it? Since there was not much activity on the repo recently, thought to ping.

[rhnvrm]

Hi @GoWebProd

Just wanted to bump this up.

[rhnvrm]

@GoWebProd @bulletmys

Apologies for bumping this. We have been using the fork in production since March 2022. Would love to get it upstreamed. If any suggestions/tweaks I can do to align it with the project do let me know, would be happy to work on it.

[knadh]

+1 Would be great if this PR could be considered.